Patents by Inventor Ryouichi Komai

Ryouichi Komai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Lighting apparatus
    Patent number: 5951145
    Abstract: A lighting apparatus comprises a circular fluorescent lamp having inner and outer circular portions arranged coaxially and having outer diameters different each other, the inner circular portion having an outer meter of 285 mm to 310 mm and comprising a first arc tube having a tube diameter of 15 mm to 21 mm and the outer circular portion having an outer diameter of 360 to 390 mm comprising a second arc tube having a tube diameter of 15 to 21 mm. The lighting apparatus further comprises an apparatus body to which the circular fluorescent lamp is assembled. The apparatus body is provided with light reflection member adapted to reflect a light from the fluorescent lamp means.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: September 14, 1999
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Fumitsugu Iwasaki, Ryouichi Komai, Keiji Takahashi, Kouji Takahashi, Keiichi Shimizu, Junya Hayashi